CN102396133A - Dynamo-electric machine - Google Patents
Dynamo-electric machine Download PDFInfo
- Publication number
- CN102396133A CN102396133A CN2009801586703A CN200980158670A CN102396133A CN 102396133 A CN102396133 A CN 102396133A CN 2009801586703 A CN2009801586703 A CN 2009801586703A CN 200980158670 A CN200980158670 A CN 200980158670A CN 102396133 A CN102396133 A CN 102396133A
- Authority
- CN
- China
- Prior art keywords
- rotor
- space
- dividing plate
- permanent magnet
- rotating machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A dynamo-electric machine (100) which is more efficiently cooled. Each end plate (25) includes an annular plate section (26) fixed to a rotating shaft (58) so as to be axially spaced from a rotor (10), and also includes a tube section (27) projecting from an outer edge (26a) of the annular plate section (26) and in contact with an axial end surface (13) of the rotor (10). A partition plate (29) provided between the rotor (10) and the end plate (25) forms a first space (42) between the rotor (10) and the partition plate (29) and also forms a second space (43) between the annular plate section (26) and the partition plate (29). A communicating path (44) for interconnecting the first space (42) and the second space (43) is formed in the partition plate (29) so as to be located outward radially of permanent magnets (21). In the annular plate section (26), there are formed through-holes (48), axially penetrating through the annular plate section (26), at positions inward radially of the permanent magnets (21).
Description
Technical field
The present invention relates to electric rotating machine, particularly bury the electric rotating machine of permanent magnet underground.
Background technology
In burying the electric rotating machine of permanent magnet underground,, use rare earth element magnet to be used as permanent magnet sometimes in order to realize high efficiency and miniaturization.Especially, use Nd (neodymium) magnet sometimes with very high magnetic force property.Though Nd magnet has remarkable magnetic force property, has the low more temperature characterisitic (thermal demagnetization) of confining force (coercive force) of the high more then magnet of temperature.When the confining force of Nd magnet descends, make irreversibly demagnetization of magnet through counter magnetic field from the outside, there is the problem of the decreased performance of electric rotating machine.Therefore, for the temperature protection of the permanent magnet that uses in the electric rotating machine, the cooling structure of permanent magnet becomes important.
Cooling structure about electric rotating machine; In the past; Proposed to make the cold oil of supplying with from armature spindle to circulate, emitted the technology (for example, opening 2005-006429 communique (patent documentation 1)) of cold oil from the outlet of end plate outer circumferential side with reference to the spy through the cavity between rotor and end plate.In addition, proposed in rotor, to be provided with oily stream, flowed the technology (for example, opening 2008-178243 communique (patent documentation 2)) of cooling off magnet through oil with reference to the spy.
The prior art document
Patent documentation 1: the spy opens the 2005-006429 communique;
Patent documentation 2: the spy opens the 2008-178243 communique.
Summary of the invention
Invent problem to be solved
Under near the situation of the outlet that cold oil is set the most peripheral of end plate, the oil that flows in the cavity between rotor and end plate is carried to outlet through centrifugal force, under this state, emits from outlet.Therefore, in cavity, do not form oily reservoir, therefore the oil stream that does not have formation and rotor to contact with magnet exist the problem that can not produce oily effective cooling of being carried out.
In addition, be provided with in interior all sides under the situation of outlet of cold oil, forming oily reservoir by outer circumferential side than the outlet in the cavity.But the oil that stores in this oil reservoir is pushed to outer circumferential side through centrifugal force, the therefore interior height of pressing.Therefore, the oil of newly in cavity, supplying with can not get in the oily reservoir, and the oil of having supplied with does not have the oil in the replaced oil reservoir and emitted, and the replacement of the oil in the result, oily reservoir can not be carried out, the problem that therefore exists oil cooling but can not effectively work.
The present invention develops in view of the above problems, and its main purpose provides the electric rotating machine that can improve cooling performance.
The means that are used to deal with problems
The electric rotating machine that the present invention relates to possesses: rotating shaft, and it is provided with revolvably; Rotor, it fixedly installs in rotating shaft; Permanent magnet, it is buried underground in rotor; End plate, its grip roll; And dividing plate, it disposes between rotor and end plate.End plate comprises: the ring-type board, and it remotely disposes in the axial direction with respect to rotor and in rotating shaft, fixedly installs; With tube portion, its from the outer rim of ring-type board to the rotor-side projection and with the axial end butt of rotor.Dividing plate with formation first space between rotor and dividing plate, and forms second space with respect to ring-type board and rotor remotely configuration in the axial direction between ring-type board and dividing plate.In rotating shaft, be formed with refrigerant passage with first spatial communication.On dividing plate,, be formed with access with first space and second spatial communication with respect to the permanent magnet radial outside.On the ring-type board,, be formed with the through hole that runs through the ring-type board in the axial direction with respect to the permanent magnet radially inner side.
In above-mentioned electric rotating machine, access can form in the outermost perimembranous radially of dividing plate.
In above-mentioned electric rotating machine, it is consistent with permanent magnet that access can form circumferential position.
In above-mentioned electric rotating machine, at least one in dividing plate and rotor, can be formed with jut outstanding in first space.
In above-mentioned electric rotating machine, jut can form the fin-shaped of radially extending and separate greater distance ground at the circumferential position place that buries permanent magnet underground and dispose.
The effect of invention
According to electric rotating machine of the present invention, can improve the cooling performance of electric rotating machine.
Description of drawings
Fig. 1 is the cutaway view of the electric rotating machine that relates to of expression execution mode 1 of the present invention.
Fig. 2 is the amplification view that the part of rotor shown in Figure 1 is amplified expression.
Fig. 3 is the cut-away section stereogram of end plate.
Fig. 4 is the cutaway view that is illustrated in the state of store refrigerant in first space.
Fig. 5 is the cutaway view that is illustrated in the state of store refrigerant in second space.
Fig. 6 is the cutaway view that is illustrated in the state of store refrigerant in first space and second space from different angles.
Fig. 7 is the sketch map of shape of the dividing plate of expression execution mode 2.
Fig. 8 is the cutaway view that is provided with the rotor of dividing plate shown in Figure 7.
Fig. 9 is the amplification view that the part of the rotor of the electric rotating machine of execution mode 3 is amplified expression.
Figure 10 is the cutaway view along the rotor of X-X line shown in Figure 9.
Figure 11 is the amplification view that the part of the rotor of the electric rotating machine of execution mode 4 is amplified expression.
Figure 12 is the cutaway view along the rotor of XII-XII line shown in Figure 11.
Figure 13 is the amplification view that the part of the rotor of the electric rotating machine of execution mode 5 is amplified expression.
Figure 14 is the cutaway view along the rotor of XIV-XIV line shown in Figure 13.
Figure 15 is the amplification view that the part of the rotor of the electric rotating machine of execution mode 6 is amplified expression.
Figure 16 is the cutaway view along the rotor of XVI-XVI line shown in Figure 15.
Figure 17 is the cutaway view that is illustrated in the variation of the jut that the axial end of rotor forms.
Figure 18 is the amplification view that the part of the rotor of the electric rotating machine of execution mode 8 is amplified expression.
Figure 19 is the cutaway view along the rotor of XIX-XIX line shown in Figure 180.
Embodiment
According to accompanying drawing execution mode of the present invention is described below.Have again, in following accompanying drawing,, and do not repeat its explanation the identical or suitable identical reference marker of part mark.
Have, in the execution mode of following explanation, each inscape is except the situation that special record is arranged, for the purpose of the present invention all not necessarily again.In addition, in following execution mode, under the situation that mentions number, quantity etc., except the situation that special record is arranged, above-mentioned number etc. only are illustrations, and scope of the present invention is not limited to this number, quantity etc.
(execution mode 1)
Fig. 1 is the cutaway view of the electric rotating machine 100 that relates to of expression execution mode 1 of the present invention.Electric rotating machine 100 shown in the figure carries the hybrid vehicle that with internal combustion engines such as petrol engine, Diesel engines and from the motor of secondary cell (battery) supply capability that can discharge and recharge is power source.Electric rotating machine 100 mean have be supplied to electric power and produce actuating force as the function of motor with as the motor generator of at least one function in the function of generator (generator).
As shown in Figure 1, electric rotating machine 100 possesses rotating shaft 58, rotor 10 and stator 50.Rotor 10 fixedly installs in the rotating shaft 58 of extending along center line 101.Rotating shaft 58 can be through the magnetic field that produces at stator 50 be center and together setting rotatably of rotor 10 with the center line 101 as the imaginary rotation centerline of rotating shaft 58.
The permanent magnet 21 that rotor 10 has rotor core 11 and buries underground at rotor core 11.That is, electric rotating machine 100 is IPM (built-in permanent magnet, Interior Permanent magnet) motors.Rotor core 11 has along the drum of center line 101.Rotor core 11 is by constituting at axial a plurality of electromagnetic steel plates 12 of (along the direction of center line 101, i.e. the direction represented of two arrow DR1 in Fig. 1) laminated.
Send the torque instruction value that electric rotating machine 100 should be exported from ECU (electronic control unit) 80 that loads at PHEV to control device 70.Control device 70 generates the Electric Machine Control electric current that is used for by the torque output of this torque instruction value appointment, and this Electric Machine Control electric current is supplied with to coil 55 through threephase cable 60.
Be provided with end plate 25, with relative with the axial end 13,14 at the place, both ends that is positioned at axial rotor 10.End plate 25 is the stepped construction of the electromagnetic steel plate 12 of clamping formation rotor 10 in the axial direction.In the end of electromagnetic steel plate 12 that will be relative with permanent magnet 21 during magnetization, the effect through magnetic force produces the power that electromagnetic steel plate 12 will separate, and still, comes the stepped construction of clamping electromagnetic steel plate 12 through configuration end 25, and prevents the separation of electromagnetic steel plate 12.But end plate 25 through any means such as being threaded, riveting, being pressed in rotating shaft 58 one fixing rotatably, be rotated motion along with the rotation of rotating shaft 58.
Between the axial end 13,14 and end plate 25 of rotor 10, dispose dividing plate 29.Dividing plate 29 is arranged to can not relatively move in the axial direction with respect to rotating shaft 58.
Rotating shaft 58 forms hollow.In the inside of rotating shaft 58, be formed with refrigerant passage 31.Refrigerant passage 31 form with the cold oil be representative be used to that to cool off the cold-producing medium of permanent magnet 21 negotiable.Refrigerant passage 31 comprises and contains the axial passageway 32 that own centre line 101 ground extend vertically.Refrigerant passage 31 also comprises being connected with axial passageway 32 and is provided with and along the radial passage 33 of radially extending of rotating shaft 58.
At the axial end 13 of end plate 25 and rotor 10, between 14, be formed with the cavity that is communicated with radial passage 33, this cavity forms refrigerant passage 41.It is negotiable that refrigerant passage 41 forms the cold-producing medium that is used to cool off permanent magnet 21.At end plate 25, be formed with the through hole 48 that runs through end plate 25 in the axial direction, with refrigerant passage 41 and external communications.
Shown in arrow among Fig. 1, the cold-producing medium that is used to cool off permanent magnet 21 is imported to refrigerant passage 41 through radial passage 33 from axial passageway 32 by not shown pump conveying.Cold-producing medium to refrigerant passage 41 is supplied with can be discharged from refrigerant passage 41 via through hole 48.
Fig. 2 is the amplification view that the part of rotor shown in Figure 1 10 is amplified expression.Fig. 3 is the cut-away section stereogram of end plate 25.As shown in Figures 2 and 3, end plate 25 comprises discoideus ring-type board 26 and from the tube portion 27 of the outer rim 26a projection of ring-type board 26.At the central portion of ring-type board 26, form porose 26b.Rotating shaft 58 is inserted and is worn this hole 26b and ring-type board 26 is fixedly installed in rotating shaft 58, thereby end plate 25 is fixing in rotating shaft 58.
As shown in Figure 2, ring-type board 26 is with respect to the axial end 13 of rotor 10 and separate configuration in the axial direction.Tube portion 27 is from axial end 13 lateral processes of ring-type board 26 to rotor 10.The front end face 27a (with reference to Fig. 3) of the toroidal of tube portion 27 and axial end 13 butts of rotor 10, thus keep the stepped construction of electromagnetic steel plate 12 in the axial direction.
Both separate configuration to dividing plate 29 in the axial direction with respect to the axial end of ring-type board of end plate 25 26 and rotor 10 13.Cavity between the axial end 13 of end plate 25 and rotor 10 is separated by dividing plate 29.The space that dividing plate 29 will be surrounded by the outer peripheral face of the axial end 13 of ring-type board 26, tube portion 27, rotor 10 and rotating shaft 58 is separated in the axial direction and is divided into two, thereby forms first space 42 and second space 43 between ring-type board 26 and the dividing plate 29 between rotor 10 and the dividing plate 29.
At the ring-type board 26 of end plate 25, be formed with the through hole 48 that runs through ring-type board 26 in the axial direction.Through hole 48 will be communicated with the space outerpace and second space 43 of rotor 10 opposition sides with respect to ring-type board 26.
At rotor core 11, form hole portion, with drum axially on run through rotor core 11.Permanent magnet 21 inserts this hole portion and buries underground in the inside of rotor 10.Permanent magnet 21 runs through rotor 10 in the axial direction, and the axial end 23 of permanent magnet 21 is configured to expose to first space 42.
Fig. 4 is the cutaway view that is illustrated in the state of store refrigerant in first space 42.Fig. 5 is the cutaway view that is illustrated in the state of store refrigerant in second space 43.Fig. 6 is the cutaway view that is illustrated in the state of store refrigerant in first space 42 and second space 43 from different angles.In Fig. 4 and Fig. 5, the section of the axial quadrature of expression and rotor 10.In Fig. 6, expression is along the axial section of rotor 10.Have, Fig. 4 is the cutaway view along the rotor 10 of IV-IV line shown in Figure 6 again, and Fig. 5 is the cutaway view along the rotor 10 of V-V line shown in Figure 6.Arrow shown in Fig. 4～Fig. 6 is represented flowing of cold-producing medium.
Like Fig. 4 and shown in Figure 6, come to flow to the action of centrifugal force that the cold-producing medium that path 33 is radially supplied with produces through the rotation because of rotor 10 to radial outside through the inner axial passageway 32 of rotating shaft 58.Cold-producing medium passes through the connected entrance 34 of radial passage 33 and 42 connections of first space is flowed into to first space 42 from radial passage 33.In first space 42, flowing to radial outside with rotor 10 facing surfaces contact edges of the axial end 13 of cold-producing medium limit and rotor 10 and dividing plate 29 arrives the axial end 23 of the permanent magnet 21 that exposes in first space 42.Because touching axial end 23 limits of permanent magnet 21, the cold-producing medium edge joint flows, therefore by axial end 23 coolings of cold-producing medium permanent magnet 21.
As shown in Figure 6, the cold-producing medium that arrives the outermost perimembranous radially in first space 42 flows into to second space 43 through the access 44 that forms in the outermost perimembranous of dividing plate 29.Cold-producing medium flows to radially inner side in second space 43, arrives the through hole 48 that forms at ring-type board 26, is discharged to the outside from through hole 48.
Through hole 48 is at the position opening that leans on the position of radially inner side than permanent magnet 21.Therefore,, leaning on inside outer circumferential side, first space 42 and second space 43 than the radial position that is formed with through hole 48, forming the cold-producing medium reservoir 19 of store refrigerant like Fig. 5 and shown in Figure 6.
In the formation of this execution mode, the outer circumferential side of dividing plate 29 submerges in the cold-producing medium that in cold-producing medium reservoir 19, stores.Therefore, it is poor to produce between the pressure of the pressure of first space, 42 gas inside and second space, 43 gas inside, and the pressure of gas increases relatively in 42 inside, first space.Therefore, also produce flowing of cold-producing medium in the inside of cold-producing medium reservoir 19, the result, cold-producing medium not silted land flows, and flows to second space 43 from first space 42 through access 44, discharges from through hole 48.
That is, in this execution mode,, and make the axial end 23 of the low permanent magnet of thermal endurance 21 always contact cold-producing medium through formation cold-producing medium reservoir 19.And through flowing of the cold-producing medium that cold-producing medium do not formed with being detained do not deposit in cold-producing medium reservoir 19, and cold-producing medium that can temperature is low is always supplied with to the axial end 23 of permanent magnet 21.Therefore, can cool off permanent magnet 21 efficiently, thereby can suppress permanent magnet 21 temperature to rise and the confining force decline of generation thermal demagnetization and permanent magnet 21.
In addition, through between rotor 10 and end plate 25, dividing plate 29 being set, can carry out the formation of the formation of cold-producing medium reservoir 19 and the cold-producing medium stream in the cold-producing medium reservoir 19, and available simple formation provides the cooling means of effective permanent magnet 21.The combination of the tube portion 27 of ring-type board 26 and the sleeve-shaped of end plate 25 through circular plate shape constitutes; And dividing plate 29 is circular plate shape; Can be easily end plate 25 and dividing plate 29 be shaped, therefore can realize electric rotating machine 100 manufacturing cost reduce the simplification with manufacturing process.
Cold-producing medium reservoir 19 is leaning on the outer circumferential side part to form than the radial position that is formed with through hole 48.That is,, then can freely change the degree of depth of cold-producing medium reservoir 19 if change the position radially of through hole 48.Through changing the degree of depth of cold-producing medium reservoir 19, can freely change in the axial end 13 of rotor 10, always long-pending by the cold-producing medium covered surfaces.Therefore, can satisfy rotor 10 required cooling performance ground and freely change the coverage rate that cold-producing medium covers rotor 10.The change of this coverage rate only just can realize through the radial position that changes through hole 48, therefore can not increase the manufacturing cost of electric rotating machine 100 and easily obtains coverage rate arbitrarily.
The through hole 48 of in addition, cold-producing medium being discharged to the outside forms at the internal side diameter of end plate 25.Therefore, can suppress centrifugal force, and can the loss that produce when the discharging refrigerant be suppressed to Min. to the cold-producing medium effect of dispersing from through hole 48.In addition, can suppress to get into the gap between rotor 10 and the stator 50, therefore can avoid slippage loss increase when the rotation of rotor 10 from the cold-producing medium that through hole 48 flows out.
(execution mode 2)
Fig. 7 is the sketch map of shape of the dividing plate 29 of expression execution mode 2.Fig. 8 is the cutaway view that is provided with the rotor 10 of dividing plate shown in Figure 7 29.Section shown in Figure 8 is that rotor 10 is cut off along IV-IV line shown in Figure 6 in the axial direction, and the section under the situation of observation and rightabout dividing plate 29 sides of IV-IV line.Dividing plate 29 with respect to execution mode 1 forms circular plate shape, and the dividing plate 29 of execution mode 2 shown in Figure 7 is formed with on this aspect of a plurality of notch 29a different with execution mode 1 in the outer edge.
With reference to Fig. 8, carry out circumferentially the location of the dividing plate 29 on (two arrow DR3 shown in Figure 8 represent, along the direction of the bending of the circle of rotating shaft 58 cylindraceous or tube portion 27), so that notch 29a is configured in the radial outside of permanent magnet 21.At this moment, constitute below adopting, dividing plate 29 can not be installed with respect to rotating shaft 58 with the relative rotation, dividing plate 29 does not change the circumferential relative position of permanent magnet 21 and notch 29a with the rotation of rotor 10 one.In addition, it is identical or slightly little with the internal diameter of tube portion 27 that dividing plate 29 forms external diameter, so that do not form the peripheral part of notch 29a and the inner peripheral surface butt of tube portion 27.
The cold-producing medium that flows to second space 43 from first space 42 circulates through the notch 29a that forms at dividing plate 29.That is, the notch 29a of dividing plate 29 constitutes the access 44 with first space 42 and 43 connections of second space.As stated, through carrying out the circumferential location of dividing plate 29, and it is consistent with permanent magnet 21 to make access 44 form circumferential position.
The cold-producing medium of supplying with in first space 42 through connected entrance 34 from the radial passage 33 of rotating shaft 58 flows to access 44.Through the position of specific access 44, can form flowing of cold-producing medium in first space 42, so that cold-producing medium contacts with the axial end 23 of permanent magnet 21 reliably and flows.Therefore, can cool off permanent magnet 21 more efficiently.
(execution mode 3)
Fig. 9 is the amplification view that the part of the rotor 10 of the electric rotating machine 100 of execution mode 3 is amplified expression.Figure 10 is the cutaway view along the rotor 10 of X-X line shown in Figure 9.Like Fig. 9 and shown in Figure 10, on the dividing plate 29 of execution mode 3, be formed with jut 90 to first space, 42 inner processes.Shown in figure 10, jut 90 has a plurality of juts 91 that form fin (the Off イ ん) shape that radially extends.
The axial end 23 of permanent magnet 21 exposes in first space 42.Here; Through the radial jut of giving prominence to first space 42 91 is set; And make jut 91 become barrier for flowing of the cold-producing medium that flows to radial outside in first space 42, therefore can in first space 42, produce vortex and turbulent flow etc. the flow of refrigerant in first space 42 is upset.Therefore, can make the low cold-producing medium of temperature contact the axial end 23 of permanent magnet 21 more efficiently, thereby can further improve the cooling performance of permanent magnet 21.
Have, the material of dividing plate 29 need to adopt nonmagnetic substance for the leakage that prevents magnetic flux again, can form dividing plate 29 by nonmagnetic substance arbitrarily.For example, can use the thin plate about the thickness 1mm of the high metal material systems such as aluminium of processability to form dividing plate 29.Using under the situation of aluminium, handling ease, therefore can through punch process etc. arbitrarily machining dividing plate 29 easily is configured as shape arbitrarily.
(execution mode 4)
Figure 11 is the amplification view that the part of the rotor 10 of the electric rotating machine 100 of execution mode 4 is amplified expression.Figure 12 is the cutaway view along the rotor 10 of XII-XII line shown in Figure 11.Like Figure 11 and shown in Figure 12, on the dividing plate 29 of execution mode 4, be formed with jut 90 to first space, 42 inner processes.Shown in figure 12, jut 90 has a plurality of juts 92 that form along the fin-shaped of circumferentially extending.
Same with execution mode 3, through jut 92 is set, can upset the flow of refrigerant in first space 42, can make the low cold-producing medium of temperature contact the axial end 23 of permanent magnet 21 more efficiently, thereby can further improve the cooling performance of permanent magnet 21.
(execution mode 5)
Figure 13 is the amplification view that the part of the rotor 10 of the electric rotating machine 100 of execution mode 5 is amplified expression.Figure 14 is the cutaway view along the rotor 10 of XIV-XIV line shown in Figure 13.Like Figure 13 and shown in Figure 14, on the dividing plate 29 of execution mode 5, be formed with jut 90 to first space, 42 inner processes.Shown in figure 14, jut 90 has a plurality of independent juts 93 that form.
Same with execution mode 3, through jut 93 is set, can upset the flow of refrigerant in first space 42, can make the low cold-producing medium of temperature contact the axial end 23 of permanent magnet 21 more efficiently, thereby can further improve the cooling performance of permanent magnet 21.
(execution mode 6)
Figure 15 is the amplification view that the part of the rotor 10 of the electric rotating machine 100 of execution mode 6 is amplified expression.Figure 16 is the cutaway view along the rotor 10 of XVI-XVI line shown in Figure 15.Different with execution mode 3～5, in execution mode 6, dividing plate 29 forms tabular, is formed with from the axial end 13 of rotor 10 jut 90 to first space, 42 inner processes.Shown in figure 16, jut 90 has a plurality of juts 94 that form the fin-shaped of radially extending.
Same with execution mode 3, through jut 94 is set, can upset the flow of refrigerant in first space 42, can make the low cold-producing medium of temperature contact the axial end 23 of permanent magnet 21 more efficiently, thereby can further improve the cooling performance of permanent magnet 21.In addition, on rotor 10, be formed with jut 90, the surface area that therefore is exposed to the rotor 10 in first space 42 increases.Therefore, can increase the contact area of rotor 10 and the cold-producing medium that flows in first space 42, thereby can further improve the cooling effectiveness of rotor 10.
(execution mode 7)
Figure 17 is the cutaway view that is illustrated in the variation of the jut 90 that the axial end 13 of rotor 10 forms.The jut 90 of execution mode 7 has a plurality of juts 94 that form the fin-shaped of radially extending.In upwards configuration equably of week, the jut 94 of execution mode 7 disposes at circumferential interval unequally with respect to the jut 94 of the fin-shaped of execution mode 6.Particularly, jut 94 leaves the configuration of greater distance ground on the circumferential position of burying permanent magnet 21 underground.
Like this, in the space of the circumferential position less relatively at the interval of 94 of adjacent juts, that permanent magnet 21 is not set, cold-producing medium is difficult to flow.Relative with it, in the space of the circumferential position of burying permanent magnet 21 underground, cold-producing medium is easy to flow, and more the cold-producing medium of volume contacts with permanent magnet 21.Therefore, can permanent magnet 21 for target forms the path of cold-producing medium, make the low cold-producing medium of temperature contact the axial end 23 of permanent magnet 21 more efficiently, thereby can further improve the cooling performance of permanent magnet 21.
(execution mode 8)
Figure 18 is the amplification view that the part of the rotor 10 of the electric rotating machine 100 of execution mode 8 is amplified expression.Figure 19 is the cutaway view along the rotor 10 of XIX-XIX line shown in Figure 180.In execution mode 1; Form dividing plate 29 so that the external diameter of dividing plate 29 diminishes with respect to the internal diameter of tube portion 27, formation access 44 between dividing plate 29 and tube portion 27, still; Like Figure 18 and shown in Figure 19; Can adopt following formation, be formed on the through hole that runs through dividing plate 29 on the thickness direction, first space 42 and second space 43 are communicated with through this through hole at peripheral part.
The through hole that forms at the peripheral part of dividing plate 29 is not limited to circular hole shown in Figure 19.For example, this through hole is become at upwardly extending slotted hole of week, and the circumferential position of the access 44 that forms with dividing plate 29 location so that through this slotted hole is consistent with permanent magnet 21.Like this, with execution mode 2 likewise, form flowing of cold-producing medium reliably at the axial end 23 of permanent magnet 21, therefore can cool off permanent magnet 21 more efficiently.
Have again; In explanation before this; Electric rotating machine to the generator performance function that is loaded into PHEV and generates electricity as the drive source of drive wheels and the power through engine etc. describes; But electric rotating machine of the present invention also can load and be used as the drive source of drive wheels in fuel-cell vehicle, electric motor car etc.
Though as above-mentioned, execution mode of the present invention is described, also can the formation of each execution mode suitably be made up.In addition, this time its full content of disclosed execution mode is illustration, should not regard qualification as.It should be noted that scope of the present invention is not the content of above explanation but is represented by the scope of asking for protection, and scope meaning and the interior whole variations of scope of equal value that comprise and ask for protection.
Utilize possibility on the industry
The electric rotating machine that electric rotating machine of the present invention is specially adapted on vehicle, load.
The explanation of Reference numeral:
10 rotors, 11 rotor cores 12; 52 electromagnetic steel plates 13; 14; 32 axial passageway 33 radial passage, 34 connected entrance 41 refrigerant passage, 42 first spaces 43 second spaces, 44 access, 48 through holes, 50 stators, 51 stator cores, 55 coils, 58 rotating shafts 90 of 23 axial ends, 21 permanent magnets, 25 end plates, the 26 ring-type board 26a outer rim 26b hole 27a of 27 portions front end faces, 29 dividing plate 29a notchs, 31 refrigerant passage; 91; 92; 93; 94 juts, 100 electric rotating machines, 101 center lines
Claims (5)
1. an electric rotating machine (100), wherein:
Possess:
Rotating shaft (58), it is provided with revolvably;
Rotor (10), it fixedly installs in said rotating shaft (58);
Permanent magnet (21), it is embedded in the said rotor (10);
End plate (25), the said rotor of its clamping (10); With
Dividing plate (29), it disposes between said rotor (10) and said end plate (25),
Said end plate (25) comprising: ring-type board (26), and it separates configuration in the axial direction with respect to said rotor (10) and in said rotating shaft (58), fixedly installs; With tube portion (27), its from the outer rim (26a) of said ring-type board (26) to said rotor (10) lateral process and with axial end (13) butt of said rotor (10),
Both separate configuration to said dividing plate (29) in the axial direction with respect to said ring-type board (26) and said rotor (10); Make and between said rotor (10) and said dividing plate (29), form first space (42); And between said ring-type board (26) and said dividing plate (29), form second space (43)
In said rotating shaft (58), be formed with the refrigerant passage (31) that is communicated with said first space (42),
On said dividing plate (29), at radial outside, be formed with access (44) with said first space (42) and said second space (43) connection with respect to said permanent magnet (21),
On said ring-type board (26),, be formed with the through hole (48) that runs through said ring-type board (26) on axially said at radially inner side with respect to said permanent magnet (21).
2. electric rotating machine according to claim 1 (100), wherein,
Said access (44) is formed at the outermost perimembranous radially of said dividing plate (29).
3. electric rotating machine according to claim 1 (100), wherein,
It is consistent with said permanent magnet (21) that said access (44) forms circumferential position.
4. electric rotating machine according to claim 1 (100), wherein,
On arbitrary at least side in said dividing plate (29) and said rotor (10), be formed with jut (90) outstanding in said first space (42).
5. electric rotating machine according to claim 4 (100), wherein,
Said jut (90) forms the fin-shaped of radially extending, and separates the configuration of greater distance ground at the circumferential position place that said permanent magnet (21) is buried underground.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2009/057732 WO2010119556A1 (en) | 2009-04-17 | 2009-04-17 | Dynamo-electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102396133A true CN102396133A (en) | 2012-03-28 |
Family
ID=42982237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801586703A Pending CN102396133A (en) | 2009-04-17 | 2009-04-17 | Dynamo-electric machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120025642A1 (en) |
| JP (1) | JP5490103B2 (en) |
| CN (1) | CN102396133A (en) |
| DE (1) | DE112009004739T5 (en) |
| WO (1) | WO2010119556A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329406A (en) * | 2011-01-28 | 2013-09-25 | 瑞美技术有限责任公司 | Electric machine cooling system and method |
| CN104518613A (en) * | 2013-09-27 | 2015-04-15 | 本田技研工业株式会社 | Rotating motor |
| CN104885343A (en) * | 2012-12-05 | 2015-09-02 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN106464087A (en) * | 2014-06-04 | 2017-02-22 | Ntn株式会社 | In-wheel motor drive device |
| CN106451865A (en) * | 2016-11-21 | 2017-02-22 | 南京磁谷科技有限公司 | High-speed motor cooling structure |
| CN108696015A (en) * | 2017-03-30 | 2018-10-23 | Tdk株式会社 | Motor |
| CN109155572A (en) * | 2016-05-23 | 2019-01-04 | 三菱电机株式会社 | Rotating electric machine |
| CN109458405A (en) * | 2014-01-30 | 2019-03-12 | Ntn株式会社 | The adsorption structure of armature and rotor |
| CN110071587A (en) * | 2018-01-23 | 2019-07-30 | 本田技研工业株式会社 | The rotor and rotating electric machine of rotating electric machine |
| CN110733334A (en) * | 2019-10-29 | 2020-01-31 | 宁波菲仕运动控制技术有限公司 | Motor rotor cooling system of electric drive assemblies |
| CN111769674A (en) * | 2020-05-18 | 2020-10-13 | 华为技术有限公司 | Rotor, motor, power assembly and vehicle |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130110037A (en) | 2012-03-27 | 2013-10-08 | 레미 테크놀러지스 엘엘씨 | Ipm machine with thermally conductive compound |
| WO2015025648A1 (en) * | 2013-08-21 | 2015-02-26 | アイシン・エィ・ダブリュ株式会社 | Dynamo-electric machine |
| JP5991545B2 (en) * | 2013-11-15 | 2016-09-14 | 株式会社デンソー | Rotating electric machine rotor and rotating electric machine equipped with the rotor |
| EP3068021B1 (en) * | 2013-12-13 | 2018-08-29 | Mitsubishi Electric Corporation | Embedded permanent magnet-type rotating electrical machine |
| JP6085267B2 (en) * | 2014-04-11 | 2017-02-22 | 本田技研工業株式会社 | Rotating electric machine |
| CN105186741A (en) * | 2014-05-27 | 2015-12-23 | 比亚迪股份有限公司 | Motor rotor and motor therewith |
| DE102014107845B4 (en) | 2014-06-04 | 2024-02-15 | Thyssenkrupp Presta Teccenter Ag | Oil distribution element |
| US10574118B2 (en) * | 2016-04-05 | 2020-02-25 | Denso Corporation | Rotating electric machine |
| WO2018025984A1 (en) * | 2016-08-05 | 2018-02-08 | 日本電産株式会社 | Motor and axial flow fan |
| DE102017201390A1 (en) | 2017-01-30 | 2018-08-02 | Audi Ag | Rotor for an electric machine, electric machine, in particular asynchronous machine, for a motor vehicle and motor vehicle |
| DE102017129212A1 (en) * | 2017-12-08 | 2019-06-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rotor with cooling |
| US11031834B2 (en) * | 2018-04-12 | 2021-06-08 | Ford Global Technologies, Llc | Electric machine rotor end plate with raised flow features |
| KR102122238B1 (en) * | 2019-01-07 | 2020-06-26 | 엘지전자 주식회사 | Electric motor |
| JP7093745B2 (en) * | 2019-05-17 | 2022-06-30 | 本田技研工業株式会社 | Rotor structure of electric motor |
| CN110380545B (en) | 2019-06-27 | 2021-01-29 | 华为技术有限公司 | Rotor, motor and electric vehicle |
| FR3116963A1 (en) * | 2020-11-30 | 2022-06-03 | Nidec Psa Emotors | Flange and rotor of rotating electric machine |
| JP2022107336A (en) * | 2021-01-08 | 2022-07-21 | トヨタ自動車株式会社 | Motor magnet oil-cooled structure and motor |
| DE102021133860A1 (en) * | 2021-12-20 | 2023-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Flow element and electrical machine with flow element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006025545A (en) * | 2004-07-08 | 2006-01-26 | Toshiba Industrial Products Manufacturing Corp | Rotating electric machine |
| WO2009011462A1 (en) * | 2007-07-19 | 2009-01-22 | Toyota Jidosha Kabushiki Kaisha | Rotary machine |
| JP2009027837A (en) * | 2007-07-19 | 2009-02-05 | Toyota Motor Corp | Rotary electric machine |
| JP2009072044A (en) * | 2007-09-18 | 2009-04-02 | Toyota Motor Corp | Rotary electric machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005006429A (en) | 2003-06-12 | 2005-01-06 | Toyota Motor Corp | Rotor structure of rotating electric machine |
| JP2008178243A (en) | 2007-01-19 | 2008-07-31 | Toyota Motor Corp | Magnet temperature estimating device, magnet protecting device, magnet temperature estimating method, and magnet protecting method |
-
2009
- 2009-04-17 DE DE112009004739T patent/DE112009004739T5/en not_active Withdrawn
- 2009-04-17 JP JP2011509153A patent/JP5490103B2/en not_active Expired - Fee Related
- 2009-04-17 WO PCT/JP2009/057732 patent/WO2010119556A1/en active Application Filing
- 2009-04-17 US US13/259,633 patent/US20120025642A1/en not_active Abandoned
- 2009-04-17 CN CN2009801586703A patent/CN102396133A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006025545A (en) * | 2004-07-08 | 2006-01-26 | Toshiba Industrial Products Manufacturing Corp | Rotating electric machine |
| WO2009011462A1 (en) * | 2007-07-19 | 2009-01-22 | Toyota Jidosha Kabushiki Kaisha | Rotary machine |
| JP2009027837A (en) * | 2007-07-19 | 2009-02-05 | Toyota Motor Corp | Rotary electric machine |
| JP2009072044A (en) * | 2007-09-18 | 2009-04-02 | Toyota Motor Corp | Rotary electric machine |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329406B (en) * | 2011-01-28 | 2016-09-28 | 瑞美技术有限责任公司 | Electromotor cooling system and method |
| CN103329406A (en) * | 2011-01-28 | 2013-09-25 | 瑞美技术有限责任公司 | Electric machine cooling system and method |
| CN104885343A (en) * | 2012-12-05 | 2015-09-02 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN104885343B (en) * | 2012-12-05 | 2017-04-26 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN104518613A (en) * | 2013-09-27 | 2015-04-15 | 本田技研工业株式会社 | Rotating motor |
| CN104518613B (en) * | 2013-09-27 | 2017-01-18 | 本田技研工业株式会社 | Rotating motor |
| CN109458405B (en) * | 2014-01-30 | 2020-06-23 | Ntn株式会社 | Adsorption structure of armature and rotor |
| CN109458405A (en) * | 2014-01-30 | 2019-03-12 | Ntn株式会社 | The adsorption structure of armature and rotor |
| CN106464087A (en) * | 2014-06-04 | 2017-02-22 | Ntn株式会社 | In-wheel motor drive device |
| CN109155572A (en) * | 2016-05-23 | 2019-01-04 | 三菱电机株式会社 | Rotating electric machine |
| CN106451865A (en) * | 2016-11-21 | 2017-02-22 | 南京磁谷科技有限公司 | High-speed motor cooling structure |
| CN108696015A (en) * | 2017-03-30 | 2018-10-23 | Tdk株式会社 | Motor |
| US10848023B2 (en) | 2017-03-30 | 2020-11-24 | Tdk Corporation | Motor containing a permanent magnet having high and low temperature side permanent magnet parts |
| CN110071587A (en) * | 2018-01-23 | 2019-07-30 | 本田技研工业株式会社 | The rotor and rotating electric machine of rotating electric machine |
| CN110733334A (en) * | 2019-10-29 | 2020-01-31 | 宁波菲仕运动控制技术有限公司 | Motor rotor cooling system of electric drive assemblies |
| CN111769674A (en) * | 2020-05-18 | 2020-10-13 | 华为技术有限公司 | Rotor, motor, power assembly and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010119556A1 (en) | 2010-10-21 |
| JP5490103B2 (en) | 2014-05-14 |
| DE112009004739T5 (en) | 2013-01-17 |
| JPWO2010119556A1 (en) | 2012-10-22 |
| US20120025642A1 (en) | 2012-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102396133A (en) | Dynamo-electric machine | |
| CN106257801B (en) | The rotor of rotating electric machine | |
| JP5088577B2 (en) | Rotating electric machine | |
| CN105453387B (en) | Permanent magnet submerged type electric rotating machine | |
| CN101755376B (en) | Rotating electric machine | |
| US8242646B2 (en) | Rotating electric machine and drive device | |
| CN110247497B (en) | Rotor of rotating electric machine | |
| EP2961043B1 (en) | Rotor of rotary electric machine | |
| WO2015087445A1 (en) | Embedded permanent magnet-type rotating electrical machine | |
| CN109450128B (en) | Motor stator and oil-cooled motor with same | |
| CN111384795A (en) | Electric machine | |
| WO2014046228A1 (en) | Permanent magnet-embedded electric motor | |
| JP2019134564A (en) | Rotor of rotary electric machine | |
| US20160118849A1 (en) | Electrical machine with inner stator | |
| JP2017017956A (en) | Rotor of rotary electric machine | |
| US10749411B2 (en) | Rotary electric machine | |
| JP2011254571A (en) | Cooling structure for rotary electric machine | |
| CN110299777B (en) | Rotor of rotating electric machine | |
| JP2012235546A (en) | Rotor and rotating electric machine | |
| JP2020120536A (en) | Stator and rotary electric machine | |
| JP2013255321A (en) | Compressor | |
| JP6942881B2 (en) | Cooling structure of rotary electric machine | |
| JP2020096474A (en) | Rotor of rotary electric machine | |
| JP5710886B2 (en) | Rotating electric machine | |
| CN111082569B (en) | Rotating electrical machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120328 |